Oilpan: Move the EventListener hierarchy to Oilpan's heap

Source/bindings/core/v8/V8WorkerGlobalScopeEventListener.cpp

Index: Source/bindings/core/v8/V8WorkerGlobalScopeEventListener.cpp
diff --git a/Source/bindings/core/v8/V8WorkerGlobalScopeEventListener.cpp b/Source/bindings/core/v8/V8WorkerGlobalScopeEventListener.cpp
index b9f2c959913964a9a171ded489b13c6bfa2f3819..0378d4949ed591e434605e9267381e410f00e3c8 100644
--- a/Source/bindings/core/v8/V8WorkerGlobalScopeEventListener.cpp
+++ b/Source/bindings/core/v8/V8WorkerGlobalScopeEventListener.cpp
@@ -54,7 +54,7 @@ void V8WorkerGlobalScopeEventListener::handleEvent(ScriptState* scriptState, Eve
 {
     // The callback function on XMLHttpRequest can clear the event listener and destroys 'this' object. Keep a local reference to it.
     // See issue 889829.
-    RefPtr<V8AbstractEventListener> protect(this);
+    RefPtrWillBeRawPtr<V8AbstractEventListener> protect(this);
 
     WorkerScriptController* script = toWorkerGlobalScope(scriptState->executionContext())->script();
     if (!script)